Buffalo Firestix PC2-6400 review at Icrontic.com
 

The FireStix had no issues surpassing PC2-8000 frequencies at timings much tighter than the SPD defaults. At their default timings, they could be overclocked by a very impressive 42.5 percent or 340MHz. There are not many PC2-6400 5-5-5 kits able to run at super tight 3-3-3 timings, either.